Kromonos thank you for your message. But I know this way with dstdom..... but the problem is... on web has a hundreds bypass proxy sites... this is no way for administrators. I spend a lot of time to search on google for bypass domains. Another idea ? -----Original Message----- From: kromonos@xxxxxxxxxxxxxxxxxxxx [mailto:kromonos@xxxxxxxxxxxxxxxxxxxx] Sent: Tuesday, October 05, 2010 1:20 PM To: squid-users@xxxxxxxxxxxxxxx Subject: Re: How to Block ByPass proxy Sites...... You could use single block: acl zerobypass dstdomain .zerobypass.info http_access deny zerobypass or you could create a "bad domain file": acl BAD_DOMAINS dstdom_regex -i "/etc/squid/bad_domains" http_access deny BAD_DOMAINS in /etc/squid/bad_domains you enter the bad domains. One per line: .zerobypass.info .zerobypass.com .... Am Tue, 05 Oct 2010 schrieb John Dakos: > > Hello all. > > Many users are join to sites such as ... www.zerobypass.info and > bypass squid proxy... and join to facebook etc etc... > > Is any way to block this sites ? > > Thanks > __________ Information from ESET NOD32 Antivirus, version of virus signature database 5504 (20101005) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com